National Science Olympiad Forum By SOF Olympiad Trainer
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Aniket Ghosh from DAV Public School Haldia, Haldia
Subject :NSO    Class : Class 6

Ans 1:

saanvi from rvk, bengaluru
Class : Class 6
the answer is b . this is because sun tan is temporary.

Ans 2:

Manvi Mundepi from Montfort School Roorkee, Roorkee
Class : Class 8
answer is b

Post Your Answer

Kaustubh Doval from Mirambika Free Progress , Delhi
Subject :NSO    Class : Class 8

Match column I with column II and choose the correct option from the codes given below.

Column I Column II
P. Nylon (i) Burns quickly with a smell of burning paper
Q. Wool (ii) Burns with sooty flame, fabric shrinks and black beads are formed
R. Acrylic (iii) Shrinks after exposure to flame, forms hard beads and gives a smell of burning hair
S. Rayon (iv) Burns slowly with a smell of burning hair


A P - (i), Q - (iv), R - (ii), S - (iii)
B P - (iii), Q - (iv), R - (ii), S - (i)
C P - (iv), Q - (iii), R - (i), S - (ii)
D P - (ii), Q - (iv), R - (iii), S - (i)


Ans 1:

SAIRAM from TRIVENI TALENT SCHOOL, HYDERBAD
Class : Class 8

Ans 2:

ARNAB MANDAL from NAVY CHILDREN SCHOOL, VIZAG
Class : Class 9
nylon burns with a smell of plastic, not burning hair. WTF?

Ans 3:

Anshuman D from MVM, Hyderabad
Class : Class 8
Supposed to be D

Ans 4:

S V Harini from Vailankanni public school , Krishnagiri
Class : Class 8
How is this possible Nylon burns with smell of hair???

Ans 5:

Abhinav Aggarwal from delhi public school, ghaziabad
Class : Class 8
wool burns with smell of burning hair

Ans 6:

Ankit kumar Jha from Ryan International School, Ghaziabad
Class : Class 8
wrong answerthe answer should be B

Post Your Answer

from , Kolkata
Subject :NSO    Class : Class 8

Post Your Answer

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Subject :NSO    Class : Class 4

Ans 1:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4
THERE IS NO SOLUTION SOB HOW CAN WE UNDERSTAND

Ans 2:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 5

Ans 3:

Kaira Srivastava from Global Indian International School, Bangalore
Class : Class 8
I think c

Ans 4:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 4
qwertyuiopasdfghjkkklzxcvbnm

Ans 5:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 5
there is air friction against gravity. so answer is B

Ans 6:

Ayushi from DPS Noida, Noida
Class : Class 4
Air always act as Frictional force against Gravity Hence ans is B in this case

Ans 7:

om from jbcn, MUMBAI
Class : Class 4

Ans 8:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4

Ans 9:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 5

Ans 10:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 4

Ans 11:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 5

Ans 12:

Sreejani Bhaduri from National Public School, Bangalore
Class : Class 4
Kqwertyuiopasdfghjklzxcvbnm,.-/:;(₹

Ans 13:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4

Ans 14:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4
There is no explanation for the answer. How do we understand sof?

Ans 15:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4

Post Your Answer

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Subject :NSO    Class : Class 5

Ans 1:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 6
I

Ans 2:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5

Ans 3:

ATUL SANJEEV from Indian school Ghubra, Muscat
Class : Class 6
the answer is A

Ans 4:

Ankita Dave from GNS, Bangalore
Class : Class 4
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Ans 5:

Praket Tejas from Delhi Public School Indira Nagar Lucknow, Lucknow
Class : Class 4
l

Ans 6:

Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur
Class : Class 5
Answer is A

Ans 7:

Rohan TR from Sri Aurobindo memorial school, Bangalore
Class : Class 5
A

Ans 8:

Manasvi Nagpal from blooming dales international school, sri ganganagar
Class : Class 5
AAAAAAAAAAAAAAAAA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 9:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5
A

Ans 10:

Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur
Class : Class 5
Answer is A

Post Your Answer

Anika Saha from New Town School, KOLKATA
Subject :NSO    Class : Class 5

Ans 1:

Vihaan from KRM, Ghaziabad
Class : Class 5
The answer must be the option "A", as it states so "Farheen filled container X with 100 ml of water." Container Y had just a different shape, and it was also broader, so how can it be the option "C"?

Ans 2:

Aniket Ghosh from DAV Public School Haldia, Haldia
Class : Class 8
It should be option A- Only 1 As water is liquid, the only change that can be seen is that of the change in shape. it volume will remain the same

Post Your Answer

Devansh singhal from Delhi public school Ghaziabad, Ghaziabad
Subject :NSO    Class : Class 4

Post Your Answer

nimay gupta from genesis global school, noida
Subject :NSO    Class : Class 6

Ans 1:

Achintya Pandey from DPS NOIDA, Noida
Class : Class 6
solution pls

Ans 2:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
Thank you saanvi

Ans 3:

MInnal Senthil from Prakriya, Bangalore
Class : Class 5
i dont know

Ans 4:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
what is this?

Ans 5:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 6
I can not understand.

Ans 6:

saanvi from rvk, bengaluru
Class : Class 6
the sum of digits of the numbers in option a,b,d comes to 29. whereas in case of option c the total is 27.hence C is the correct answerwh

Ans 7:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 6
Thank you for the solution saanvi

Ans 8:

Trisha Singh from Navy Children School, New Delhi
Class : Class 7
i really can't understand.

Post Your Answer

Jasmit kaur from Sun Valley International School, Vashundra
Subject :NSO    Class : Class 5

Ans 1:

Mrigank Roy from Delhi Public School Ghaziabad, Ghaziabad
Class : Class 5
Can you explain

Ans 2:

Riya from Bhavan Vidyalaya, Chandigarh
Class : Class 4

Ans 3:

Fareeha siddiqua from Janki Devi public school , Mumbai
Class : Class 5

Ans 4:

KOUSTUV JENA from RYAN INTERNATIONAL SCHOOL, RAIPUR
Class : Class 6

Ans 5:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Can u please explain

Ans 6:

D M Sarvesh from Narayana Group of Schools, Mogappair
Class : Class 4
Can you please explain

Ans 7:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is B because as in the line graph the number of heartbeats decreased in the line RS.

Post Your Answer

Shaurya Suryawanshi from The Orbis school, Pune
Subject :NSO    Class : Class 4

Ans 1:

Akshat Pathak from DPS, Noida
Class : Class 4
[a] is the correct answer

Ans 2:

Aaditya Kant from DPS, Nerul, Navi Mumbai
Class : Class 4
the correct answer is d

Ans 3:

Akshat Pathak from DPS, Noida
Class : Class 4
there is nothing called NOVEMBEROOK

Ans 4:

Aajani Datta from The Samhita Academy, Bangalore
Class : Class 5

Ans 5:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 4
Novemberook is a typing mistake. Everyone can see that.

Ans 6:

Snow White from Le Setea , Paris
Class : Class 4
Novembrook could be a mistake

Ans 7:

Deepayan Das from South Point School, Kolkata
Class : Class 5
what is Novemberook?

Ans 8:

Devansh from mmvm, Udaipur
Class : Class 4
[d] is wrong

Ans 9:

Snow White from Le Setea , Paris
Class : Class 4
The answer is D because they are saying AFTER 4th Tuesday of November 20XX that means 4th Tuesday is 28th November but after 28th November the date is 29th November .

Ans 10:

DEVANG Gupta from B K birla school kalyan, Kalyan
Class : Class 4

Ans 11:

Jibran Noorshah from Mount Litera Zee School, Bengaluru
Class : Class 4
What is this Novemberook. I think it means November Book or is it a typing mistake.

Ans 12:

Jibran Noorshah from Mount Litera Zee School, Bengaluru
Class : Class 4
They're saying after 4th tuesday that means 29 November. Novemberook could be a mistake.

Ans 13:

DEVANG Gupta from B K birla school kalyan, Kalyan
Class : Class 4

Post Your Answer